/*
* INSANE - Interactive Structural Analysis Environment
*
* Copyright (C) 2003-2005
* Universidade Federal de Minas Gerais
* Escola de Engenharia
* Departamento de Engenharia de Estruturas
* 
* Author's email :    insane@dees.ufmg.br
* Author's website :  http://www.dees.ufmg.br/insane
* 
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or any later version.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
package br.ufmg.dees.insane.ui.rich.postp.postp_view.command;

import java.awt.Toolkit;
import java.io.File;
import java.io.FileInputStream;
import java.io.ObjectInputStream;

import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

import br.ufmg.dees.insane.commons.command.Command;
import br.ufmg.dees.insane.commons.view.ExtensionFileFilter;
import br.ufmg.dees.insane.commons.view.ModelList;
import br.ufmg.dees.insane.model.femModel.FemModel;
import br.ufmg.dees.insane.model.postp.PostpModel;
import br.ufmg.dees.insane.model.postp.StepPostp;
import br.ufmg.dees.insane.parser.FemModelToPostpModel;
import br.ufmg.dees.insane.persistence.StepModel;
import br.ufmg.dees.insane.ui.rich.postp.postp_view.DesktopPostp;
import br.ufmg.dees.insane.ui.rich.postp.postp_view.InterfacePostp;
import br.ufmg.dees.insane.xyplot.xyplot_model.XYPlot;
import br.ufmg.dees.insane.xyplot.xyplot_view.InterfaceXYPlot;

/**
 * This class is an implementation of the interface Command.
 * It's unabled to undo or redo.
 * Its "execute" method fills the current fem model with
 * the data from a XML file in a given file.
 *
 * @author Penna, Samuel & Fonseca, Flavio & Pitangueira, Roque
 * @since 05/07/2006 2004
 * @see gui.command.Command
 */
public class ImportFemBinCommand implements Command {
    
    private DesktopPostp parent;
    private JFileChooser fileChooser = new JFileChooser();
    private ExtensionFileFilter filter = new ExtensionFileFilter(new String[]{"isn"}, "INSANE Files");
    private PostpModel postpModelMesh;
    private boolean validFile;
	
//*****************************************************************************
	
    /**
     * Creates new ImportXMLCommand
     * and sets the FileFilter of FileChooser.
     *
     * @param parent The JFrame parent.
     */
    public ImportFemBinCommand(JFrame parent) {
        this.parent = (DesktopPostp)parent;
        fileChooser.setFileFilter(filter);
    }
    
//*****************************************************************************
	
    /**
     * Calls the file chooser an encode the fem model as a XML file.
     *
     * @see gui.command.Command#execute()
     */
    public void execute() {
        validFile = false;
        while (!validFile) {
            int retVal = fileChooser.showOpenDialog(parent);
            if (retVal == JFileChooser.APPROVE_OPTION) {
                //Checks if the file exists and is readable
                File file = fileChooser.getSelectedFile();
                if (file.exists() && file.isFile() && file.canRead()){
                    validFile = true;
                }
                else {
                    JOptionPane.showMessageDialog(parent, "File \"" + fileChooser.getSelectedFile().getPath() + "\" doesn't exist.", "Error Message", JOptionPane.ERROR_MESSAGE);
                }
            }
            else return;
        }
        
        Object objAux = new Object();
        try{
            ObjectInputStream stream = new ObjectInputStream(new FileInputStream(fileChooser.getSelectedFile()));
            objAux = stream.readObject();
        }catch (Exception exc) {
            Toolkit.getDefaultToolkit().beep();
            JOptionPane.showMessageDialog(parent, "Couldn't open file!", "Error Message", JOptionPane.ERROR_MESSAGE);
        }
        
        this.parent.setInterface();
        
        if(objAux instanceof StepModel){
        	
            FemModel femModel = (FemModel)((StepModel)objAux).getModel();
            FemModelToPostpModel parserPostpModel = new FemModelToPostpModel(femModel);
            
    		//ArrayList<String> nodals = femModel.getNodeKeys();
            
            postpModelMesh = new PostpModel();
            postpModelMesh.addStep(parserPostpModel.getStepPostp());
            postpModelMesh.setLabel(fileChooser.getSelectedFile().getName().replaceAll(".isn",""));
            if(((ModelList)this.parent.getModelList()).getModelList().containsKey(postpModelMesh.getLabel())){
                ((ModelList)this.parent.getModelList()).removeModel(postpModelMesh.getLabel());
                ((ModelList)this.parent.getModelList()).putModel(postpModelMesh.getLabel(),postpModelMesh);
                
                InterfacePostp intFrame = new InterfacePostp();
                intFrame.validate();
                intFrame.setPostpModel(postpModelMesh);
                intFrame.setModel((StepPostp)postpModelMesh.getStepList().get(0));
                intFrame.setTitle(postpModelMesh.getLabel());
                (this.parent).addInternalFrame(intFrame);
                intFrame.toFront();
            
                String message = "A model with same name was found and overrided!"; 
                JOptionPane.showMessageDialog(parent, message, "Warning", JOptionPane.INFORMATION_MESSAGE);
        
            }else{
                postpModelMesh.setLabel(fileChooser.getSelectedFile().getName().replaceAll(".ipp",""));
                ((ModelList)this.parent.getModelList()).putModel(postpModelMesh.getLabel(),postpModelMesh);
                InterfacePostp intFrame = new InterfacePostp();
                intFrame.validate();
                intFrame.setPostpModel(postpModelMesh);
                intFrame.setModel((StepPostp)postpModelMesh.getStepList().get(0));
                intFrame.setTitle(postpModelMesh.getLabel());
                (this.parent).addInternalFrame(intFrame);
                intFrame.toFront();
            }
            
            }else if(objAux instanceof XYPlot){
                XYPlot xyPlot = (XYPlot)objAux;
                InterfaceXYPlot intFrame = new InterfaceXYPlot();
                intFrame.validate();
                intFrame.setModel(xyPlot);
                intFrame.setTitle(xyPlot.getTitle());
                (this.parent).addInternalFrame(intFrame);
                intFrame.toFront();
            }
        
        this.parent.setInterface();
        
    }
 
    
//*****************************************************************************
    /**
     * Impossible to undo - not implemented.
     */
    public void undo() {}
    
//*****************************************************************************
	
    /**
     * Impossible to redo - not implemented.
     */
    public void redo() {}

//*****************************************************************************
}
